Abstract
A part of the compressed tree fern axis with leaf and adventitious root scars in unusual arrangement from Plio–Pleistocene sediments of Arunachal Pradesh, India is described as Cyathea siwalika sp. nov. This record suggests that Cyathea was an important component of tropical evergreen forest in the area during the Plio–Pleistocene and this group subsequently declined in importance within the local vegetation.
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Acknowledgements
Department of Science and Technology, New Delhi is acknowledged for financial assistance. Authors are thankful to Sri Bimalendu De, Ex Dy. D.G. and Sri Sambhu Chakrabarty, Sr. Geologist, Geological Survey of India, Operation Arunachal, Itanagar for the help and co-operation during collection of fossil specimens.
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Bera, S., Gupta, S., Khan, M.A. et al. First megafossil evidence of Cyatheaceous tree fern from the Indian Cenozoic. J Earth Syst Sci 123, 1433–1438 (2014). https://doi.org/10.1007/s12040-014-0460-x
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DOI: https://doi.org/10.1007/s12040-014-0460-x